真题
名校
1 . 若无穷数列
满足:只要
,必有
,则称
具有性质
.
(1)若
具有性质
,且
,
,求
;
(2)若无穷数列
是等差数列,无穷数列
是公比为正数的等比数列,
,
,
判断
是否具有性质
,并说明理由;
(3)设
是无穷数列,已知
.求证:“对任意
都具有性质
”的充要条件为“
是常数列”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e7146186b3a33ea5cbff137f9e3437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c0b488096f27c73fc960e27f3b864a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73bc889cb3a977841028e444d62a4d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e690b25af1cd3e04b784a9f26be3e90e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(2)若无穷数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c522c1c881528ab6f9708f6bdd4c4db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e52d55280e664b707f4e9ef4cb1554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928be44c53a39c116c715ab72f2f2d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb2db37e079b735acc41ea3035139e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d8df5703574ef08007f1eea3cea18e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4611e6b3af6a0f44f9d7a481f0e50d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
您最近一年使用:0次
2016-12-04更新
|
1008次组卷
|
16卷引用:《2018届优等生百日闯关系列》【江苏版】专题二 第五关 以子数列或生成数列为背景的解答题
(已下线)《2018届优等生百日闯关系列》【江苏版】专题二 第五关 以子数列或生成数列为背景的解答题(已下线)专题14 数列综合-五年(2016-2020)高考数学(文)真题分项(已下线)专题14 数列综合-五年(2016-2020)高考数学(理)真题分项(已下线)考点20 数列的综合运用-2021年高考数学三年真题与两年模拟考点分类解读(新高考地区专用)(已下线)重组卷03(已下线)专题21 数列解答题(理科)-22016年全国普通高等学校招生统一考试理科数学(上海卷精编版)北京市西城区北师大实验2017届高三上12月月考数学(理)试题北京西城北师大实验2017届高三上12月月考数学(理)试题上海市复旦大学附属中学2019届高三高考4月模拟试卷数学试题江苏省南通市海安高级中学2019-2020学年高三上学期9月月考数学试题北京市第八中学2021-2022学年高二下学期期中考试数学试题(已下线)2016年全国普通高等学校招生统一考试理科数学(上海卷参考版)2020年江苏省南通海安市高三学年初学业质量检测数学试题北京市中关村中学2022-2023学年高二下学期期中调研数学试题辽宁省沈阳市东北育才学校科学高中部2023-2024学年高二下学期期中考试数学试题
名校
2 . 【江苏省南京市2018届高三第三次模拟考试数学试题】若数列
满足:对于任意
均为数列
中的项,则称数列
为“
数列”.
(1)若数列
的前
项和
,求证:数列
为“
数列”;
(2)若公差为
的等差数列
为“
数列”,求
的取值范围;
(3)若数列
为“
数列”,
,且对于任意
,均有
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12904ba93668414fbd4196c65b380e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e439cf2ba548f2bf9b74993d37788a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若公差为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381576e698a46df8c497e6b5f8346ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb0252535a8504bc51bfe2a1b32a512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75175d13d8d9ec79257e62cc1d675eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
您最近一年使用:0次
2018-05-17更新
|
947次组卷
|
3卷引用:专题20 与数列有关的恒成立问题-2018年高考数学(理)母题题源系列(江苏专版)
(已下线)专题20 与数列有关的恒成立问题-2018年高考数学(理)母题题源系列(江苏专版)【全国市级联考】江苏省南京市2018届高三第三次模拟考试数学试题上海市第二中学2017-2018学年高一下学期5月月考数学试题
名校
3 . 已知二次函数
的图象的顶点坐标为
,且过坐标原点
.数列
的前
项和为
,点
在二次函数
的图象上.
(Ⅰ)求数列
的通项公式;
(Ⅱ)设
,数列
的前
项和为
,若
对
恒成立,求实数
的取值范围;
(Ⅲ)在数列
中是否存在这样一些项:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756b338721e124048b547d3268a67ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaaab658512ef8356e228879582cf94.png)
,这些项都能够构成以
为首项,
为公比的等比数列
?若存在,写出
关于
的表达式;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f2932b9863fb218b7a990aa80abfc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8df5cca91bbd56bd8c68d3a9f87012e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(Ⅰ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc0c5e305fdd6773ca9d5ce1d1fb4368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255afadbbd30a385b4a433f95b27962d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851c8763f6700bccac95949fc0d316f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(Ⅲ)在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756b338721e124048b547d3268a67ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaaab658512ef8356e228879582cf94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756b5423a1ef40732567e3b18098270f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a1cd8452683923f3fcade9034f78a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e956b81c5f97904f3d7c0843c717cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55a7d201b7336a2b950c7fb05409bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2016-12-03更新
|
1825次组卷
|
5卷引用:考向18 数列不等式-备战2022年高考数学一轮复习考点微专题(上海专用)
(已下线)考向18 数列不等式-备战2022年高考数学一轮复习考点微专题(上海专用)(已下线)专题17 数列探索型、存在型问题的解法 微点1 数列探索型问题的解法2015届北京市顺义区高三第一次统一练习(一模)理科数学试卷上海市行知中学2018-2019学年高三上学期期中数学试题江西省南昌八中、南昌二十三中等四校2018-2019学年高一下学期期中联考数学试题
12-13高三·广东佛山·阶段练习
名校
4 . 数列
的前
项和为
,且
是
和
的等差中项,等差数列
满足
,
.
(1)求数列
、
的通项公式;
(2)设
,数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aaee408bdec05bbdfcd4b841a331e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee04181b1fe91eb6a9abffc0ca2afe9.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175005738672c8c1f431aac6333ab94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c522c1c881528ab6f9708f6bdd4c4db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e06b0fda8954c395f1a3ccfbc88698.png)
您最近一年使用:0次
2016-12-03更新
|
1350次组卷
|
14卷引用:人教A版 全能练习 全能练习 不等式 模块结业测评(二)
人教A版 全能练习 全能练习 不等式 模块结业测评(二)(已下线)河南省实验中学2023-2024学年高三上学期第一次月考数学试题变式题15-18(已下线)2014届广东佛山南海普通高中高三8月质量检测文科数学试卷(已下线)2014届河北省唐山一中高三上学期期中考试理科数学试卷(已下线)2014届河北衡水中学高三上学期期中考试理科数学试卷(已下线)2014届内蒙古呼伦贝尔市高三高考模拟二理科数学试卷(已下线)2014届内蒙古呼伦贝尔市高三高考模拟二文科数学试卷(已下线)2014届内蒙古呼市二中高三模拟考试二理科数学试卷2015-2016学年河北省石家庄一中高二上学期期中数学试卷河北省石家庄市第一中学2017-2018学年高二上学期期中考数学(理)试题河北省石家庄市第一中学2017-2018学年高二上学期期中考数学(文)试题【全国百强校】北京东城北京二中2018届高三上学期期中考试数学(理)试题【全国百强校】广西陆川县中学2017-2018学年高一下学期期末考试数学(文)试题北京市西城区北京师范大学附属实验中学2019-2020学年高三上学期期中数学试题
5 . 已知数列
为等差数列,
,
的前
和为
,数列
为等
比数列,且
对任意的
恒成立.
(Ⅰ)求数列
、
的通项公式;
(Ⅱ)是否存在非零整数
,使不等式
对一切
都成立?若存在,求出
的值;若不存在,说明理由.
(Ⅲ)各项均为正整数的无穷等差数列
,满足
,且存在正整数k,使
成等比数列,若数列
的公差为d,求d的所有可能取值之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
比数列,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca8a0c2499f7a5e1860d23940cd87b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
(Ⅰ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(Ⅱ)是否存在非零整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bc042352e2f4d4a5cc80492ad120d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(Ⅲ)各项均为正整数的无穷等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc25e825ee0cd0b1708aa39349468716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78bf40d71329e4898bd227324173cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
您最近一年使用:0次
真题
6 . 已知
是公差为
的等差数列,
是公比为
的等比数列.
(1) 若
,是否存在
,有
说明理由;
(2) 找出所有数列
和
,使对一切
,
,并说明理由;
(3) 若
试确定所有的
,使数列
中存在某个连续
项的和是数列
中的一项,请证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(1) 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ab4ad049f59b28b6f434b5933af5a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e396eb470cb5c41cb751391e3dc1ea5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523764272014175d85c35e1b85ef3e80.png)
(2) 找出所有数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fee32e0d09ea30addd230ef4c972a5.png)
(3) 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8676c526f1aedf8acba91cb42e21602f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
2016-11-30更新
|
1759次组卷
|
3卷引用:考向16 数列求和及数列的综合应用-备战2022年高考数学一轮复习考点微专题(上海专用)
(已下线)考向16 数列求和及数列的综合应用-备战2022年高考数学一轮复习考点微专题(上海专用)沪教版(上海) 高三年级 新高考辅导与训练 第四章 数列与数学归纳法 二、数列的其他问题2009年普通高等学校招生全国统一考试理科数学(上海卷)
7 . (注意:在试题卷上作答无效)
已知数列
中,
.
(Ⅰ)设
,求数列
的通项公式;
(Ⅱ)求使不等式
成立的
的取值范围.
已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb0a30bfe0b5c36ca9ef87ee12eaa82.png)
(Ⅰ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a596fab7cf61a25591dd4d81dbc617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
(Ⅱ)求使不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dce6905169349f3369e45914dfdf5ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
2016-11-30更新
|
701次组卷
|
7卷引用:第三篇 数列、排列与组合 专题5 迭代数列与极限 微点2 迭代数列收敛性及其应用(一)
(已下线)第三篇 数列、排列与组合 专题5 迭代数列与极限 微点2 迭代数列收敛性及其应用(一)(已下线)第三篇 数列、排列与组合 专题4 数列的不动点 微点2 数列的不动点(二)(已下线)第三篇 数列、排列与组合 专题4 数列的不动点 微点1 数列的不动点(一)(已下线)专题10 数列通项公式的求法 微点6 倒数变换法2010年普通高等学校招生全国统一考试(全国Ⅰ)理科数学全解全析2015届重庆市巴蜀中学高三上学期第三次月考理科数学试卷上海市七宝中学2016-2017学年高二上学期开学考试数学试题
名校
8 . 设数列
满足
,其中
,且
,
为常数.
(1)若
是等差数列,且公差
,求
的值;
(2)若
,且存在
,使得
对任意的
都成立,求
的最小值;
(3)若
,且数列
不是常数列,如果存在正整数
,使得
对任意的
均成立. 求所有满足条件的数列
中
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4c63e894402368c2d3ccc41fb53205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc5735838e43b7a229e8f45c9bfffb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac69e6db1df13ed64756b4f391ae9fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc23f793ac06643cfc07e01eb205aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7448e65bda478cce0c6092e2c9eff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1a89ad1646a6d4fcdcf1bc84414201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fbecca12ee62538020483fd55a2109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2b94cbf8f1acc77ed2618d9ba5756a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
您最近一年使用:0次
2018-01-18更新
|
715次组卷
|
7卷引用:2018年高考二轮复习测试专项【苏教版】专题六 不等式
(已下线)2018年高考二轮复习测试专项【苏教版】专题六 不等式(已下线)《2018届优等生百日闯关系列》【江苏版】专题二 第五关 以子数列或生成数列为背景的解答题南京市、盐城市2018届高三年级第一次模拟考试数学(理)试题上海市格致中学2018-2019学年高三下学期3月月考数学试题2020届江苏省南通市如东县栟茶高级中学高三上学期第三次月考数学试题上海市七宝中学2022届高三冲刺模拟卷二数学试题江苏省南京市六校2024届高三下学期期初联合调研数学试题
9 . 已知无穷数列
的各项都是正数,其前
项和为
,且满足:
,
,其中
,常数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
.
(1)求证:
是一个定值;
(2)若数列
是一个周期数列(存在正整数
,使得对任意
,都有
成立,则称
为周期数列,
为它的一个周期),求该数列的最小周期;
(3)若数列
是各项均为有理数的等差数列,
(
),问:数列
中的所有项是否都是数列
中的项?若是,请说明理由;若不是,请举出反例.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fab51121848ce166035ceab6f4e00b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2ad613ce3380f983f09c8690e7df4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe80aeedc8536a87704740c14c73acb.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87e872b54bef7a4843c26c1f734fa7f.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2b94cbf8f1acc77ed2618d9ba5756a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c77a0d9091238b8d5eab4e4a8129149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
您最近一年使用:0次
2020-01-07更新
|
353次组卷
|
3卷引用:专题17 数列探索型、存在型问题的解法 微点2 数列存在型问题的解法
10 . 数列
的前
项和为
,且对任意正整数
,都有
;
(1)试证明数列
是等差数列,并求其通项公式;
(2)如果等比数列
共有2017项,其首项与公比均为2,在数列
的每相邻两项
与
之间插入
个![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6457cfb4eb6f0f646452bef7560e725.png)
后,得到一个新数列
,求数列
中所有项的和;
(3)如果存在
,使不等式
成立,若存在,求实数
的范围,若不存在,请说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033aa83400bc9291900b425cfa3acfac.png)
(1)试证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)如果等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b8d5b6045219ea4527202ab131bb2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6457cfb4eb6f0f646452bef7560e725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a07c3b1b0ec260855f690cf286085ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
(3)如果存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c82e3d8e2946f0c5ceead3e115c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次